Experts said the workplace is the most likely target for a gunman like what happened at Seibert Trucking in Des Moines two years ago. Police found two men shot to death by a coworker.

"Based on society, things that are happening across America, we wanted to educate employees if we ever have an active shooter," said Sgt. Scott Cunningham of the Waukee Police Department.

The training involved city workers in a live dramatization that involves a police officer acting as a gunman. The man walks in to the city office with a starter pistol as his simulated weapon and pretends to fire at the receptionist.

He then turns and shoots into the first office he sees before proceeding down the hallway.

At this point during the exercise, police confront the man acting as the shooter.

"Drop the gun, hands up where I can see them -- down on the ground," said the officer confronting the actor.

The entire exercise takes just minutes.

"It happened really quick," said Logan Cinnamon, a high school student involved in the exercise.

"It's scary to see what can happen when someone comes in intent on taking people out," said Becky Schuett, Waukee city clerk.

The training teaches employees to run, hide or fight. They were told to plan an escape route from your office and develop a strategy for survival.

The U.S. is now seeing three times as many active shooter incidents than a decade ago. Waukee police have also conducted the training at the public library and plan to involve the schools in it as well in the future.